High severity · published Aug 14, 2026
CVE-2026-50523
Microsoft PowerShell Remote Code Execution Vulnerability
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft PowerShell allows an authorized attacker to execute code locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
P7
PowerShell 7.4 · Microsoft
7.4.0 before 7.4.19.0 · source: vendor
P7
PowerShell 7.5 · Microsoft
7.5.0 before 7.5.10.0 · source: vendor
P7
PowerShell 7.6 · Microsoft
7.6.0 before 7.6.5 · source: vendor
PO
Powershell · Microsoft
7.4 before 7.4.19.0; 7.5 before 7.5.10.0; 7.6 before 7.6.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-50523
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-50523
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50523
More from PowerShell 7.4
8.8
CVE-2026-96251
Microsoft PowerShell Remote Code Execution Vulnerability
8.8
CVE-2026-70337
Microsoft PowerShell Remote Code Execution Vulnerability
7.8
CVE-2026-70338
Microsoft PowerShell Security Feature Bypass Vulnerability
7.8
CVE-2026-26143
Microsoft PowerShell Security Feature Bypass Vulnerability
7.5
CVE-2026-58612
PowerShell Information Disclosure Vulnerability